Perpetual calendar



Sept. 9, 1941. .1. M. CRABB, SR

PERPETUAL CALENDAR 2 Sheets-Sheep l Filed March '7,V 1940 Se'pt. 9, 1941. .1, M. CRABB, SR

PERPETUAL CALENDAR- 2 Sheets-Sheet 2 Filed March '7, '1940 2S (2 nu.

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Inventor ,/amps /Wa/r Q $7 'iomeys Patented Sept. 9, 1941 UNITED STATES PATENT OFFICEl PERPETUAL CALENDAR James Moir Crabb, Sr., Lockport, Ill.

Application March 7, 1940, Serial No. 322,827 1o claims. (o1. 40-109) My invention relates to improvements in perpetual calendars, and an important objectief the invention is to provide a simple, convenient, and ecient arrangement of this character which is readily adaptable to different decorative schemes and which provides an unusually useful and attractive assembly.

Other important objects and advantages of my invention will be apparent from a reading of the following description taken in connection with the appended drawings, wherein for purposes. of illustration I have shown preferred embodiments of my invention.

In the drawings:

Figure 1 is a general front or face view of an embodiment of the invention.

Figure 2 is a vertically foreshortened side or edge elevational view of Figure l lookingnfrom` right to left.

Figure 3 is a general vertical transverse sectional view taken through Figure 1 approximately on the line 3 3 and looking toward the left in the direction of the arrows.

Figure 4 is a face View of one of the month cards.

Figure 5 is a horizontal sectional view taken through Figure 1 approximately on the line 5 5 and looking downwardly in the direction of the arrow.

Figure 6 is a horizontal sectional view taken through Figure 1 approximately on the line 6 6 and looking downwardly in the direction of the arrow.

Figure 7 is a fragmentary horizontal sectional view taken through Figure l approximately on the line 1 1.

Figure 8 is a fragmentary face view of one of the leap-year month cards.

Figure 9 is a face View of a portion of the year band.

Figure 10 is a fragmentary view similar to Figure 3 of another embodiment of the invention which eliminates the separate month card receptacle and in which all of the month cards are registered while one of them is in use.

Referring in detail to the drawings the numeral 5 generally designates the present calendar which consists of a backboard 6 of generally rectangular vertically elongated form, made of suitable stiif material such as cardboard, fiber, lightweight opposite ends of which rise side members andv,

respectively. The 'members 1, 8 and 9 have spacers I0, as shown in Figure 7, securing them f to the front of the backboardY 6 so that laterally lnward portions of the elements 1, 8 and 9 are spaced from the backboard so as to provide grooves for reception of the interchangeable picture cards II, of which six are provided, with different views on opposite sides of each of the picture cards, together with a designation suchV as that indicated by the numeral I2, applying to the month during which the particular picture is to be exhibited, so that a pertinent picture is provided for each month of the'year.

, Slidably mounted by and between the horizontal element 'I and the lower horizontalV element I8 is the slide frame comprising two uprights I3 and I3',` respectively, which are spaced from the side edges of-the plate 6 and from each other a sufficient distance to slidably receive therebetween the month cards I4, the elements I3 and I3 being spacedly secured by spacers I5 to the front face of arectangular plate I 6 which is slidable on the face of the plate 6 as indicated in Figure 5, the arrangement providing grooves for reception of the edge of the month card I4 as indicated in Figure 5, the month card then occupying a position in 4front of the face of the plate I6. A vstop strip I'I is secured between the lower ends of the uprights I3 and I3 to be engaged by the bottom edge of the month card when the month card is in place. The lower horizontal strip I8 is fastened across the lower end portion of the plate 6 as illustrated in Figure 1. VAttached to the lower edge I9 of the plate 6 is a narrow month card receptacle 20 which is composed ci a back plate 6', being an extension of the plate 6,`a front plate 2| coextensive therewith, two uprights 22 and 23 and a front plate 24 which is spaced by the uprights 22 and 23 from the plate 2l as illustrated in Figure 6, thereby providing a receptacle for the month cards I 4, including the leap-year cards I 4. The receptacle 20 contains all of the month cards including the leap-year cards except the one which is in use in the display frame above the receptacle.

As' indicated in Figure 3 at the point designated by therespective numerals 25 and 26, the upper and lower edges of the display frame composed by the elements I3; I3 and I'I, have projecting anges which engage in grooves in the cross members I and I8, respectively, so as to be slidable between these members for a purpose to be described.

The face ofV the back plate -6 between the crossrmembers 'I .and I8 is provided adjacent the member 'I with a line 28 which is composed of spaced abbreviations -for the different days of the week beginningwith Wednesday at the left hand extremity and extending through three weeks and ending at the right hand extremity with Tuesdey.

` VA slot 2s is formed in the piste ls of the dismay frame to overlie the line 28 and is long enough vto embrace an entire week, this slot 29 being located -centrally in the upper part of the plate l6.f`Below the slot `23 the plate YI6 has horizontally aligned and spaced slots 30 and 3l which are long enough to embrace an entire Week on the longer line of week-day designations 32 loi-1A Vcated in a position spaced below the line ofweek days which is vdesignated by the numeral V'28,on the face of the plate 6. frame is slidable relative to the lines 28 and 32 s o as'to cause the respective slots'29', 3ll-and 3+ lines28 and 32 elected by the operator.

`It is obviousthat thej Yin the plateV I6 to subtend the portions of thev4 i The six' ordinary month cards Hl and the two120 leap-yearrmonth cards IA'y have slotsv 29', 3'01 and l3|',corresponding in sizeV and position lilith-thel slots @29, 3B and 3'l5`so thatthese slots register*y y when anyV month card is in theframe'. -Each mon-th' card has above its slot 29'7av designation 33l of Vthe particular month involved, as indicated` In the case of one ofthe cards, theY designation 33` above the Yslot l2S" is Deceni-1v ber, and in the proper sequencethejd'esignration 33 abovev the slot 30 willl beNovember, whilethel in Figure 4.

designation above the slot 3 l zwill `be4 J anuaryg. these beingthe Vnext preceding andnextisuccneed` ing months. Belowtherespectiveslots arehori-` zontal and vertical rows of numerals in an assem'- bly 34 similar to the ordinary arrangement cia monthY calendar, theY vertical4 columnsloeing ing pla-ced the month tabulation 35 under the proper year on the strip 36, a one move Voperation will show the days ofthe Weeks, the number 1 next year-',Vitis only necessary to move vthe sliding frame alongv until the month wanted has its tabulation 35 aligned under the year'selected on `the strip'36, and the information is shown in the various slots described.A It will be obvious that ,Y

only two" leap-year cards are necessary, each havinggan appropriate set of month calendars on theopposite sides thereof.

When the month related to the month currently in the frame has expired, the card is taken out ,of the frame and turned around or reversed andv put back in the vframe tor expose the next succeeding month thereon.V The frameY isV then moved toy pla-ce the tabulation 35? under the cor,` f Y rect Vyear on the stripL 3B. When this secondY` month has expired the card isA removed from their Y frame; reversed, and pla-ced at the back of the idle month cards in the receptaclesov that the cards will beA in proper rotation in the receptacle.V When years other than'those exposedin theY slot 31 are to rbe employed, the endless band 4,6-, `running onv upper and lower rol-lersjM` Yand 42 supported by vertical sideA members@ and 44" on the back of the backboard 6, is moved so as f to expose other strips 33 in theslotlmhaving the required year designating numerals 45' thereon.

Y The numerals 45 are, Vof course, appropriately spaced and arranged to correspond Awith andA 1 register with the day of the week designations: on the rows 28 'and V32 onjthe `tace Vof the Vback.

v'plate 6*,1eac'h assembly having the' proper inum'- v" l ber ofdays in accordance with the numberiof 'days in that particular month, and the' numeral l being located `in the vertical column' which is applicable. On the'rear of each month cardjlis an'jY arrangement of three month calendarsV similartof I Vthose described and' similarly related t'o th various slots, with the designation 33 abovetheupperslot' being one month in advance of the month on` the face ofthe card,in the case ofthe"cardv illustrated in Figure 4, the designation Y33,011 thev reverse side is'November, the left hand calendar October, and the right hand calendar'Decembenj l In Vthe, case of each of the twelvemonthsfof:A

the -year, there is a similar relation to the two,

adjacent months on the front'and back o'f the month card. Each month card and its Idesigna:rv tion 35 at its top is to be related in position with" the A successivel yearY designations" on the strip' 36 which are exposed in a horizontal slot 3l in the cross memberl and back'plate r6, as illustrated inA 3 Theleapyear inonth cards I4 'are similar lin general ali-'rangement' to' the ordinaryv month;cardsv I4 except that the.upper.designationsf33V and spaced relative to each other orplaced side by sidezorr the strips SiA in' accordance withcalendar j requirements.

VReferring to the embodiment shown'inxFigure f Y l0 ofthe drawings, this is similar ink all respects to` the embodiment described except that VtheV Vmonth card receptaclefb'elow Ythe cross meiiloerv Y, i8 is omitted' andV the construction of" the slideV 5f frame Ma amplified sufficiently to accept allof the ordinary month and `leari-ifrear monthicards M'Vwith thevarious slots'V 29230" and 3-I".of these Y cards registering with theirl respective slots two` of which are shown at 29a. and 30a. in the" slideY plate I6'.V VThe'reference characters 6v` and ,42a designate the back plate 6 and onej of Ithe; rollers respectively. Theoperation of thiser-ribo'd'in'ientVV is as Vdescribed above. l

VIt is obviousv thatv either bodinients may be in the form of a one year calendarcapable of reference onlyjtcitl'ievnext preceding and next succeeding V:yearsgbymaking the strip 36 stationary.

Although I have4 shown' and described herein preferred embodiments of my invention, itis to be definite-ly understood that I .dolfnot desire to` 4limit the'application` ofr'ny invention theret'ogand v Y Y Y Vany change or changes `may be' made-,in thecon-rstruction andrarra'ngement ofthe', parts, which the'month tabulations`35 arejof' a colorcontrast- ,Y v

Virrggwith,those'oi the similar portions of theore'` dinary l month jcards, y and 1 the ,numeralsl in Vthe variousicalendarsare suitably rearrangedto cofre` respond with the., cpnditionfobtaining; in' leapy` ye ars. 4 `It will be obvious'fthatwhen figuring dates"v relative to a leap=year,fthe icorrespending'leap#v Y, yearmonth'cards will bev used in the sliding frame instead ofthe ordinary month card.

f romiiie foiegoingjity wi-iibeevideniinat nava' fall within the" scope .of the subjoinedjclaims. i

Having .described the invention, what-reclaimed mounted between said slides, 'said' .frame coniprijsgineapljathavrig. upper and' lower-Openings', an' upper'w'eek-dayline,on' the face. of s'aid'-lcaclj-V Y board for showing through the upper opening, a j

:of the described eine Y Y l d type described", said at fr ei'idvarV comprising a baclbcard, a pair-of vertical? y i lyv spaced l-lorizontal'Y slidesV extending ori the l ace lower-week-day line on the face of said back-` board for'showingvthrough the lower openingsv opening, a lower week-day line on theface of.

said backboard Vfor showing through the lower openings in said plate, a month card, vertical slideson said frame for slidable reception `of the month card, said month card having upper andA lower openingsto register with the openings in the plate of said frame, a linear series of consecutive year designations exposed through an opening in the upper horizontal slide, a month tabulation on the upper edge of the month card for registration vwith the` appropriate one of the year designations.

'3. Acalendar of the type described, said calendar comprising a backboard, a pair of verticallyspaced horizontal slides extending on the face of said backboard, a horizontal slidable frame. mounted between said slides, said frame comprising a plate having upper and lower horizontal slots, anl upper week-day line on thev face of :said backboard for showing through the upper slot, a lower week-day line on the face of said backboard for showing through the lower slots in said plate, a month card, Vvertical slides on said frame vfor slidable reception of the month card, said month card having upper and lower slots toregister with the slots in the plate of said fram-e, a linear series of consecutive year designations exposedthroughuan opening in the upper horizontal slide, a month tabulation on the upper edge of the month card for registration with the appropriate one of the year designations, each slot of the month card being of a length to encompass seven week-day designations of the -corresponding week-day line on the face of the backboard.

4. A calendar of the type described, said calendar comprising a backboard, a pair of vertically spaced horizontal slides extending on the face of said backboard, a horizontal slidable frame mounted between sai-d slides, said frame comprising a plate having upper and lower horizontal slots, an upper week-day line on the face of said backboard for showing through the upper slot, a lower week-day line on the face of said backboard for showing through the lower slots in said plate, a month card, vertical slides on said frame for slidable reception of the month card, said month card having upper and lower slots to register with the slots in the plate of said frame, ai linear series of consecutive year designations exposed through an opening in the upper horizontal slide, a month tabulation on the upper edge of the month card for registration with the appropriate one of the year designations, each slot of the month cards being of a length to encompass seven week-day designations of the corresponding week-day line on the face of the backboard, a calendar layout related to eachV of the slots on the month card.

5. A calendar of the type described, said calendar comprising -a backboard, a pair of vertically spacedfhorizontal slides extending on the face of said backboard, a horizontally slidable frame mounted between said slides, said frame comprising a plate having` upper and lower horizontal slots,l an upper week-day line on theface of said backboard for showing through the upper slot, a lowerl week-day line on the face of said backboard vfor showngthrogh thelower slots in said plata-amonth card,-vertical slides on said frame for -slidable reception of the month card, said month cardhaving-upper and lower slots to registerfwith'thelslots in the plate of said frame, a month card receptacle under the lower horizontal slide,said receptacle containing six regular month cards and twoleap-year-month cards, each of the. month cards havingconsecutivemonth calendarsiarranged yon the opposite faces thereof.

l6. A. calendar comprising a support comprising a main plate, upper and lower rollers supported behind said main plate, a ribbonmounted on said rollershaving transverse rows of year designationsthereon for selective exposure through a horizontal opening formed in said main plate, a

.pair of vertically spaced slideways on the front of said main plate below said horizontal opening, Y

a slide frame supported for horizontal adjustment in frontlof said main plate by said slideways, means comprising at least one month Card carried by said slide frame, said month card having a tabulation at its upper edge arranged to be aligned with a selected one of the year designations of the.-selected one of said rows of year designations exposed through said horizontal opening.

7. A calendar comprising a support comprising a main plate, upper and lower rollers supported behind said main plate, a ribbon mounted on said rollers having transverse rows of year designations thereon for selective exposurevthrough a horizontal opening formed in said main plate, a pair of vertically spaced slideways on the front of said main plate below said .horizontal opening, a slide framesupported for horizontal adjustment in front of said main plate by said slideways, means comprising at least one month card carried by said slide frame, said month card having a tabulation at its upper edge arranged to be aligned with a selected one of the year designations of the selected one of said rows of year designations exposed through said horizontal opening, an upper horizontal line of consecutive week-day designations on said main plate adjacent to but below the upper slideway, a single upper horizontal slot formed in said month card arranged to expose seven consecutive week-day designations in said upper line, a month calendar layout on said month card below said upper slot having its vertical columns of date numerals arranged ior alignment with the selected seven week-day designations of said upper line.

8. A calendar comprising a support comprising a main plate, upper and lower rollers supported behind said main plate, a ribbon mounted on said rollers having transverse rows of year designations thereon for selective exposure through a horizontal opening formed in said main plate, a pair of vertically spaced slideways on the front of said main plate below said horizontal opening, a slide frame supported for horizontal adjustment in front of said main plate by said slideways, means comprising at least one month card carried by said slide frame, said month card having a tabulation at its upper edge arranged to be aligned witha selected one `ofV the year designations of theselected one'of said -rows of year designations exposed-through said horizontal opening,l an upper horizontal line of consecu` Vtive week-day designations on said main plate adf jacent lto but-below the upper slideway, a single upper horizontal slot- Vformeclin said month card arranged to expose seven consecutive week-day designations in said upper line, a month calendar layout on said month card below said upper slot having its'vertical columns of date numerals arranged forV alignment with Vthe selected seven week-day designations of said upper line, a lower' horizontalline of consecutive week-day designa--A tions onsaid main plate below the upper-line, a horizontally aligned pair oflower slots formed insaid month cardfbelow isaid single upper slot, a preceding month -calendar layout on said month card below one of the lower slots and asucceeding month calendarlayout below `the remaining 20 month, and the succeeding month.

` 9. A calendar comprising a support comprising a main plate, upper and loWerrollers supported behind said main plate, a ribbon mounted on said arranged :toexpose seven consecutive week-day designations in said upper line, a month calendar layout on saidvmonth card belowY said upper slot ranged for alignment with the selected seven week-day. designations of 4said upper line, said means consisting of six ordinary month cards and two l'leap-year cards arranged in succession from front to'rear. Y

y 10. A calendar comprising a support comprising a main plate, upper and lowerrollers supported behind said main plate, a ribbon mounted on said rollers having transverse rows of year designations thereon for selective exposure through a horizontal opening formed in said main plate, a pair of vertically spaced slideways on the front of said mainplate below said horizontal opening, a slide frame supported forhorizontal adjustment in front of said main plate by said l slideways, means comprising at least one month rollershaving transverse-*rows of year designaltions thereon for rselective-exposure through a horizontal opening formed in said main plate, a

pair of vertically spaced slidewayson the front* aligned with a selected one of the year designations of 'the selected one of said rows of year designations exposed through said horizontal openingan upper horizontal line of consecutive week-day'designations on said main plate adcard carried by said slide frame, said month card having a tabulation at its upper edge arranged to be aligned with a selected one of the year designations of the selected one of said rows of year designations exposed through said horizontalY opening, an upper horizontal line of con'- secutive week-day designations on said main plate adjacent tobut below the upper slideway, a single upper horizontal slot formed in said month card arrangedto expose seven consecutive week-day designations in said upper line, a month-calendar 'layout on said month card below'said upper slot from front to rear, each of said month cards being reversible to exposel calendar layouts of an adjacent month. Y f

` JAMES'MOIR CRABB, SR. 

